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In this activity, learners construct drawing machines using a cup, some markers, and a cricket to control the movement. A programmed LEGO RCX or Cricket is required for this high-tech version.

This is a simple activity for learners to create a traditional musical instrument. Pan Pipes have developed all over the world in different cultures, from South America to Greece and China.

In this activity, learners create and reveal secret messages written with invisible ink! The invisible ink is actually a baking soda solution, and the magical revealing liquid is fruit juice.

In this activity, learners explore the human influences on the carbon cycle and examine how fossil fuels release carbon.

In this engineering design activity, learners will design, test, and build a “haunting machine” to solve a Sherlockian mystery.

This design challenge is an open-ended exploration of linkages, a group of parts connected by hinges, and the types of motion they can create.

Students design and build their own parachutes in this hands-on engineering project.

Learners use shop tools and various materials to construct a magnetic spinner and a compass.

In this delicious activity, learners get to make, taste-test and compare their own "brands" of homemade strawberry ice cream.

In this activity with several mini experiments, learners explore the chemistry that helps scientists learn about the environment and how they can help save it.